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This article provides a comparison between the OATH-based one-time password (OTP) mobile apps Nexus Personal MobileGoogle Authenticator, and Microsoft Authenticator.

Features
Nexus Personal MobileGoogle AuthenticatorMicrosoft Authenticator
OATH-compliant

Time-based one-time password (TOTP)

Event-based one-time password (HOTP)


Supported by Nexus Hybrid Access Gateway

Fingerprint authentication on iOS and Android



Face recognition on iOS



Supported algorithms




SHA1

SHA256on iOS



on Android



SHA512on iOS



on Android



OTP types

OATH allows generating an OTP based on a shared secret. There are two types of OTPs:

  • time-based OTP (TOTP): A TOTP is renewed after a fix amount of time, for example 30 seconds. 
  • event-based OTP (HOTP): An HOTP is valid per authentication. After authentication a new OTP is generated. 

Nexus authentication platform

Nexus authentication platform Nexus Hybrid Access Gateway supports OTP token authentication based on OATH – for hardware and software tokens – as well as self-registration for OATH-compliant mobile applications.